TY - GEN

T1 - FE-analysis of ground freezing for the construction of a tunnel cross connection

AU - Cudmani, Roberto

AU - Nagelsdiek, Siegfried

PY - 2006

Y1 - 2006

N2 - The Finite Element Method (FEM) is used in combination with an elastic-viscoplastic constitutive model for the analysis of a ground freezing problem related to the construction of a tunnel cross connection in the city of Cologne. As the considered problem is essentially three-dimensional, but a 3D-calculation was not feasible, an approximate solution is obtained by coupling a simplified 3D- with a 2D-model. It is concluded that the FEM is an appropriated and powerful technique for the analysis of ground freezing problems. However, the time-dependent response of the frozen body, especially the evaluation of the maximum allowable standing time, can be only properly predicted if the real constitutive behavior of the frozen soil is taken into account in the calculation.

AB - The Finite Element Method (FEM) is used in combination with an elastic-viscoplastic constitutive model for the analysis of a ground freezing problem related to the construction of a tunnel cross connection in the city of Cologne. As the considered problem is essentially three-dimensional, but a 3D-calculation was not feasible, an approximate solution is obtained by coupling a simplified 3D- with a 2D-model. It is concluded that the FEM is an appropriated and powerful technique for the analysis of ground freezing problems. However, the time-dependent response of the frozen body, especially the evaluation of the maximum allowable standing time, can be only properly predicted if the real constitutive behavior of the frozen soil is taken into account in the calculation.

UR - http://www.scopus.com/inward/record.url?scp=55549129974&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:55549129974

SN - 0415397480

SN - 9780415397483

T3 - Proc. Int. Conf. Numerical Simulation of Construction Processes in Geotechnical Eng. for Urban Environment - Numerical Modelling of Construction Processes in Geotechnical Eng. for Urban Environment

SP - 201

EP - 210

BT - Proc. Int. Conf. on Numerical Simulation of Construction Processes in Geotechnical Eng. for Urban Environment - Numerical Modelling of Construction Processes in Geotechnical Eng. for Urban Environment

T2 - International Conference on Numerical Simulation of Construction Processes in Geotechnical Engineering for Urban Environment - Numerical Modelling of Construction Processes in Geotechnical Engineering for Urban Environment

Y2 - 23 March 2006 through 24 March 2006

ER -